“This shouldn’t happen”: Inside the virus-hunting nonprofit EcoHealth Alliance
55 by jashkenas | 11 comments on Hacker News.
55 by jashkenas | 11 comments on Hacker News.
Thursday, 31 March 2022
New top story on Hacker News: Reticulum, an encrypted heterogenous mesh network protocol
Reticulum, an encrypted heterogenous mesh network protocol
18 by SkyMarshal | 3 comments on Hacker News.
18 by SkyMarshal | 3 comments on Hacker News.
Wednesday, 30 March 2022
New top story on Hacker News: Ask HN: How does a CPU communicate with a GPU?
Ask HN: How does a CPU communicate with a GPU?
3 by pedrolins | 0 comments on Hacker News.
I've been learning about computer architecture [1] and I've become comfortable with my understanding of how a processor communicates with main memory - be it directly, with the presence of caches or even virtual memory - and I/O peripherals. But something that seems weirdly absent from the courses I took and what I have found online is how the CPU communicates with other processing units, such as GPUs - not only that, but an in-depth description of interconnecting different systems with buses (by in-depth I mean an RTL example/description). I understand that as you add more hardware to a machine, complexity increases and software must intervene - so a generalistic answer won't exist and the answer will depend on the implementation being talked about. That's fine by me. What I'm looking for is a description of how a CPU tells a GPU to start executing a program. Through what means do they communicate - a bus? How does such a communication instance look like? I'd love get pointers to resources such as books and lectures that are more hands-on/implementation aware. [1] Just so that my background knowledge is clear: I've concluded NAND2TETRIS, watched and concluded Berkeley's 2020 CS61C and have read a good chunk of H&P (both Computer Architecture: A Quantitative Approach and Computer Organization and Design: RISC-V edition), and now am moving on to Onur Mutlu's lectures on advanced computer architecture.
3 by pedrolins | 0 comments on Hacker News.
I've been learning about computer architecture [1] and I've become comfortable with my understanding of how a processor communicates with main memory - be it directly, with the presence of caches or even virtual memory - and I/O peripherals. But something that seems weirdly absent from the courses I took and what I have found online is how the CPU communicates with other processing units, such as GPUs - not only that, but an in-depth description of interconnecting different systems with buses (by in-depth I mean an RTL example/description). I understand that as you add more hardware to a machine, complexity increases and software must intervene - so a generalistic answer won't exist and the answer will depend on the implementation being talked about. That's fine by me. What I'm looking for is a description of how a CPU tells a GPU to start executing a program. Through what means do they communicate - a bus? How does such a communication instance look like? I'd love get pointers to resources such as books and lectures that are more hands-on/implementation aware. [1] Just so that my background knowledge is clear: I've concluded NAND2TETRIS, watched and concluded Berkeley's 2020 CS61C and have read a good chunk of H&P (both Computer Architecture: A Quantitative Approach and Computer Organization and Design: RISC-V edition), and now am moving on to Onur Mutlu's lectures on advanced computer architecture.
New top story on Hacker News: Developers spend most of their time figuring the system out
Developers spend most of their time figuring the system out
43 by webmaven | 11 comments on Hacker News.
43 by webmaven | 11 comments on Hacker News.
New top story on Hacker News: Artists Who Code, a group helping artists switch careers to tech
Artists Who Code, a group helping artists switch careers to tech
32 by linux2647 | 32 comments on Hacker News.
32 by linux2647 | 32 comments on Hacker News.
Tuesday, 29 March 2022
New top story on Hacker News: Sergey Brin: The Facebook phenomenon is a problem (2007)
Sergey Brin: The Facebook phenomenon is a problem (2007)
15 by mfiguiere | 1 comments on Hacker News.
15 by mfiguiere | 1 comments on Hacker News.
Monday, 28 March 2022
New top story on Hacker News: The jokes that have made people laugh for thousands of years
The jokes that have made people laugh for thousands of years
10 by wjSgoWPm5bWAhXB | 4 comments on Hacker News.
10 by wjSgoWPm5bWAhXB | 4 comments on Hacker News.
Sunday, 27 March 2022
New top story on Hacker News: Thundernetes makes it easy to run your game servers on Kubernetes
Thundernetes makes it easy to run your game servers on Kubernetes
12 by pjmlp | 2 comments on Hacker News.
12 by pjmlp | 2 comments on Hacker News.
Saturday, 26 March 2022
New top story on Hacker News: Solar Orbiter passes historically close to sun on Saturday
Solar Orbiter passes historically close to sun on Saturday
16 by Brajeshwar | 4 comments on Hacker News.
16 by Brajeshwar | 4 comments on Hacker News.
New top story on Hacker News: Show HN: Wachy – A UI for eBPF-based performance debugging
Show HN: Wachy – A UI for eBPF-based performance debugging
24 by vivek-jain | 2 comments on Hacker News.
eBPF is an amazing technology that allows safely running user-supplied functions at pretty much arbitrary probe points in a kernel/user space context. Much has been written about how amazing this feature is for kernel observability. But as someone who writes user space code, what I find even more amazing is the support for tracing arbitrary user space programs, with no code changes and low overhead. However, doing in-depth analysis can get complicated and time-consuming. My goal with wachy was to make this debugging significantly easier/faster to use, by displaying traces in a TUI next to the source code and allowing for interactive drilldown analysis. If you get a chance, check out the start of the demo video since (AFAIK) it's quite unique and gives a much clearer idea than I can provide with just text.
24 by vivek-jain | 2 comments on Hacker News.
eBPF is an amazing technology that allows safely running user-supplied functions at pretty much arbitrary probe points in a kernel/user space context. Much has been written about how amazing this feature is for kernel observability. But as someone who writes user space code, what I find even more amazing is the support for tracing arbitrary user space programs, with no code changes and low overhead. However, doing in-depth analysis can get complicated and time-consuming. My goal with wachy was to make this debugging significantly easier/faster to use, by displaying traces in a TUI next to the source code and allowing for interactive drilldown analysis. If you get a chance, check out the start of the demo video since (AFAIK) it's quite unique and gives a much clearer idea than I can provide with just text.
Friday, 25 March 2022
New top story on Hacker News: From lightweight to featherweight: MicroK8s memory optimisation (2021)
From lightweight to featherweight: MicroK8s memory optimisation (2021)
10 by sbmthakur | 1 comments on Hacker News.
10 by sbmthakur | 1 comments on Hacker News.
New top story on Hacker News: Interoperability without sacrificing privacy: Matrix and the DMA
Interoperability without sacrificing privacy: Matrix and the DMA
27 by vanburen | 0 comments on Hacker News.
27 by vanburen | 0 comments on Hacker News.
Thursday, 24 March 2022
Wednesday, 23 March 2022
Tuesday, 22 March 2022
New top story on Hacker News: Adafruit requires 2FA to prevent bots buying out Raspberry Pi
Adafruit requires 2FA to prevent bots buying out Raspberry Pi
114 by 7402 | 51 comments on Hacker News.
114 by 7402 | 51 comments on Hacker News.
Monday, 21 March 2022
New top story on Hacker News: New technology aims to stop wildlife from spreading Ebola, rabies, other viruses
New technology aims to stop wildlife from spreading Ebola, rabies, other viruses
47 by samizdis | 67 comments on Hacker News.
47 by samizdis | 67 comments on Hacker News.
Sunday, 20 March 2022
New top story on Hacker News: The Interview Process at Canonical - application withdrawn
The Interview Process at Canonical - application withdrawn
84 by taubek | 43 comments on Hacker News.
84 by taubek | 43 comments on Hacker News.
New top story on Hacker News: The Hidden Life of Trees: What They Feel, How They Communicate (2018)
The Hidden Life of Trees: What They Feel, How They Communicate (2018)
11 by peterburkimsher | 3 comments on Hacker News.
11 by peterburkimsher | 3 comments on Hacker News.
New top story on Hacker News: The sacred pool of Ba'al: a reinterpretation of the ‘Kothon’ at Motya
The sacred pool of Ba'al: a reinterpretation of the ‘Kothon’ at Motya
7 by diodorus | 0 comments on Hacker News.
7 by diodorus | 0 comments on Hacker News.
Saturday, 19 March 2022
New top story on Hacker News: Robert Freitas was still in college when he started “Xenology”
Robert Freitas was still in college when he started “Xenology”
5 by Breadmaker | 0 comments on Hacker News.
5 by Breadmaker | 0 comments on Hacker News.
Friday, 18 March 2022
New top story on Hacker News: US schools can subscribe to an electric bus fleet at lower prices than diesel
US schools can subscribe to an electric bus fleet at lower prices than diesel
157 by orangebanana1 | 115 comments on Hacker News.
157 by orangebanana1 | 115 comments on Hacker News.
New top story on Hacker News: Mariupol's devastation: AP journalists document war's toll
Mariupol's devastation: AP journalists document war's toll
114 by gmays | 14 comments on Hacker News.
114 by gmays | 14 comments on Hacker News.
New top story on Hacker News: Doorway to an Augmented Reality Future–Intensity Control of Parallel Projectors
Doorway to an Augmented Reality Future–Intensity Control of Parallel Projectors
9 by sizzle | 1 comments on Hacker News.
9 by sizzle | 1 comments on Hacker News.
Thursday, 17 March 2022
New top story on Hacker News: Amazon's new role-playing game can help you build your AWS skills
Amazon's new role-playing game can help you build your AWS skills
31 by webmaven | 12 comments on Hacker News.
31 by webmaven | 12 comments on Hacker News.
Wednesday, 16 March 2022
New top story on Hacker News: Famous Navy UFO Video Was Camera Glare, Evidence Suggests
Famous Navy UFO Video Was Camera Glare, Evidence Suggests
155 by mromanuk | 145 comments on Hacker News.
155 by mromanuk | 145 comments on Hacker News.
Tuesday, 15 March 2022
New top story on Hacker News: Show HN: I made Devzat – It's like discord but in the terminal, over SSH
Show HN: I made Devzat – It's like discord but in the terminal, over SSH
14 by quackduck | 0 comments on Hacker News.
Run `ssh devzat.hackclub.com` to try it out! The repo is here: https://ift.tt/OJgTkqe (golang). It has markdown and emoji support, DMs, channels, and it can show images too. You can send code, and it gets syntax highlighted (you can change the theme). You can ping people like so: @user and it sends them a \a, which should play an audible sound if the terminal allows it. There's inbuilt games and rainbow names and a lot of other small things I don't remember right now. You might find the auth system interesting: it's based on a hash of ssh pubkey (bans use that and a hash of IP, so it isn't so easy to get around a ban) Also an interesting issue: bots that go around trying to brute force ssh into random IPs with common usernames. My current solution is banning if rapid successive joins are detected.
14 by quackduck | 0 comments on Hacker News.
Run `ssh devzat.hackclub.com` to try it out! The repo is here: https://ift.tt/OJgTkqe (golang). It has markdown and emoji support, DMs, channels, and it can show images too. You can send code, and it gets syntax highlighted (you can change the theme). You can ping people like so: @user and it sends them a \a, which should play an audible sound if the terminal allows it. There's inbuilt games and rainbow names and a lot of other small things I don't remember right now. You might find the auth system interesting: it's based on a hash of ssh pubkey (bans use that and a hash of IP, so it isn't so easy to get around a ban) Also an interesting issue: bots that go around trying to brute force ssh into random IPs with common usernames. My current solution is banning if rapid successive joins are detected.
Monday, 14 March 2022
New top story on Hacker News: Cascading failures in large-scale distributed systems
Cascading failures in large-scale distributed systems
6 by firstSpeaker | 0 comments on Hacker News.
6 by firstSpeaker | 0 comments on Hacker News.
Sunday, 13 March 2022
New top story on Hacker News: Arpanet pioneer Jack Haverty says the internet was never finished
Arpanet pioneer Jack Haverty says the internet was never finished
11 by onei | 0 comments on Hacker News.
11 by onei | 0 comments on Hacker News.
New top story on Hacker News: The Big List of Engineering Management Resources – March 2022
The Big List of Engineering Management Resources – March 2022
28 by shawnaxsom | 4 comments on Hacker News.
28 by shawnaxsom | 4 comments on Hacker News.
Saturday, 12 March 2022
New top story on Hacker News: Saudi Arabia puts 81 to death in its largest mass execution
Saudi Arabia puts 81 to death in its largest mass execution
62 by nojonestownpls | 30 comments on Hacker News.
62 by nojonestownpls | 30 comments on Hacker News.
Friday, 11 March 2022
New top story on Hacker News: Ask HN: Neutral DNS servers?
Ask HN: Neutral DNS servers?
51 by NotAWorkNick | 31 comments on Hacker News.
Hi HN - Here’s a question that I hope will generate some useful comments, suggestions and links. Background for question: I normally run an internal DNS resolver with an upstream pool of 10-15 providers. These are normally a mix of Global Anycast servers (Quad9 etc) with some OpenNIC, YandexDNS etc thrown in towards the end to cover the ‘chilling effects’ blackholes. Currently Yandex DNS is pinging a timeout (either due to black-holing or DDOS’ing depending on where I connect To/From). My question to HN is this – Given my ‘Information Wants To Be Free’ viewpoint, are there any DNS equivalents of Switzerland (WWII, Neutral to all parties) providers?
51 by NotAWorkNick | 31 comments on Hacker News.
Hi HN - Here’s a question that I hope will generate some useful comments, suggestions and links. Background for question: I normally run an internal DNS resolver with an upstream pool of 10-15 providers. These are normally a mix of Global Anycast servers (Quad9 etc) with some OpenNIC, YandexDNS etc thrown in towards the end to cover the ‘chilling effects’ blackholes. Currently Yandex DNS is pinging a timeout (either due to black-holing or DDOS’ing depending on where I connect To/From). My question to HN is this – Given my ‘Information Wants To Be Free’ viewpoint, are there any DNS equivalents of Switzerland (WWII, Neutral to all parties) providers?
New top story on Hacker News: FoundationDB: A distributed unbundled transactional key value store
FoundationDB: A distributed unbundled transactional key value store
68 by eatonphil | 19 comments on Hacker News.
68 by eatonphil | 19 comments on Hacker News.
Thursday, 10 March 2022
New top story on Hacker News: Volcanoes, plague, famine and endless winter: Welcome to 536
Volcanoes, plague, famine and endless winter: Welcome to 536
25 by goldenskye | 4 comments on Hacker News.
25 by goldenskye | 4 comments on Hacker News.
Wednesday, 9 March 2022
New top story on Hacker News: Amazon lied about using seller data, lawmakers say, urging DOJ investigation
Amazon lied about using seller data, lawmakers say, urging DOJ investigation
68 by ProAm | 4 comments on Hacker News.
68 by ProAm | 4 comments on Hacker News.
Tuesday, 8 March 2022
Monday, 7 March 2022
New top story on Hacker News: SATCOM terminals under attack in Europe: a plausible analysis
SATCOM terminals under attack in Europe: a plausible analysis
51 by mritzmann | 2 comments on Hacker News.
51 by mritzmann | 2 comments on Hacker News.
Sunday, 6 March 2022
New top story on Hacker News: Non blocking and zero downtime ALTER statements in PostgreSQL with pg-osc
Non blocking and zero downtime ALTER statements in PostgreSQL with pg-osc
77 by postgresqlDB | 10 comments on Hacker News.
77 by postgresqlDB | 10 comments on Hacker News.
New top story on Hacker News: The Battle of the Gauges: The Railway Revolutionised Victorian Britain
The Battle of the Gauges: The Railway Revolutionised Victorian Britain
19 by Hooke | 2 comments on Hacker News.
19 by Hooke | 2 comments on Hacker News.
New top story on Hacker News: Show HN: I made a privacy-first minimalist Backblaze
Show HN: I made a privacy-first minimalist Backblaze
45 by bimbashrestha | 20 comments on Hacker News.
Creator here. I was looking for something as simple as Backblaze Personal [1] but privacy focused and open source. This is my attempt to build that. Uses PyQt6 [2] for the GUI and Pyinstaller [3] for creating the platform specific binaries. The backup engine under the hood is Restic [4]. The server code is written in Laravel [5]. All the code is on GitHub [6]. I actually really like Backblaze (even use B2 for this offering behind the scenes) so this isn't meant to throw shade their way. Just wanted a private open source alternative. Something like Bitwarden but for backups. [1] https://backblaze.com [2] https://ift.tt/ImE8KMZ [3] https://ift.tt/192GoaP [4] https://ift.tt/7p3G2FN [5] https://laravel.com [6] https://ift.tt/AJlKLY1
45 by bimbashrestha | 20 comments on Hacker News.
Creator here. I was looking for something as simple as Backblaze Personal [1] but privacy focused and open source. This is my attempt to build that. Uses PyQt6 [2] for the GUI and Pyinstaller [3] for creating the platform specific binaries. The backup engine under the hood is Restic [4]. The server code is written in Laravel [5]. All the code is on GitHub [6]. I actually really like Backblaze (even use B2 for this offering behind the scenes) so this isn't meant to throw shade their way. Just wanted a private open source alternative. Something like Bitwarden but for backups. [1] https://backblaze.com [2] https://ift.tt/ImE8KMZ [3] https://ift.tt/192GoaP [4] https://ift.tt/7p3G2FN [5] https://laravel.com [6] https://ift.tt/AJlKLY1
Saturday, 5 March 2022
New top story on Hacker News: GE won’t let me use convection roast on my new oven without connecting to WiFi
GE won’t let me use convection roast on my new oven without connecting to WiFi
97 by ilamont | 49 comments on Hacker News.
97 by ilamont | 49 comments on Hacker News.
Friday, 4 March 2022
New top story on Hacker News: Moderation Teams and Technology: Improving Customer Retention (2015)
Moderation Teams and Technology: Improving Customer Retention (2015)
6 by mooreds | 0 comments on Hacker News.
6 by mooreds | 0 comments on Hacker News.
Thursday, 3 March 2022
New top story on Hacker News: Russia Blocks Its Last Independent Television Channel
Russia Blocks Its Last Independent Television Channel
34 by mudro_zboris | 0 comments on Hacker News.
34 by mudro_zboris | 0 comments on Hacker News.
Wednesday, 2 March 2022
Tuesday, 1 March 2022
New top story on Hacker News: An insane baseball proposal: Dual league restructuring
An insane baseball proposal: Dual league restructuring
65 by SubiculumCode | 47 comments on Hacker News.
65 by SubiculumCode | 47 comments on Hacker News.
New top story on Hacker News: Google Maps is used to coordinate air strikes in Ukraine
Google Maps is used to coordinate air strikes in Ukraine
83 by ukrwantpiece | 32 comments on Hacker News.
83 by ukrwantpiece | 32 comments on Hacker News.